A multiplicative form of the habit term in the utility function has some undesirable properties if the habit function is itself still additive (Wendner, 2003). A geometric form for the way the stock of habit accumulates can resolve these shortcomings.

This paper structurally estimates the Capitalist Spirit Model, in which utility derives from direct preferences for wealth. Its results support the hypothesis that wealth accumulation is a luxury good, by showing that the marginal utility from wealth declines more slowly than that from consumption.

Based on the HRS, I find strong dissaving of nursing home residents and a significant overestimation of U.S. saving rates from age 75 onwards if nursing home residents are excluded as in most micro datasets.

Kimball (1990a,b) established that income risk increases the marginal propensity to consume if and only if absolute prudence decreases. We characterize decreasing and increasing multivariate prudence and show that a multidimensional risk increases the marginal propensity to consume if and only...

We show that a steeply increasing workload before a deadline is compatible with time-consistent preferences. The key departure from the literature is that we consider a stochastic environment where success of effort is not guaranteed.

This letter develops a set of simple conditions under which an individual is willing to save an extra amount of money due to the presence of ambiguity concerning his second period wealth. This extra precautionary saving motive is naturally associated with the notion of ambiguity prudence.

We study multivariate prevention decisions by disentangling early and late prevention. We show how the modularity of prevention and several measures of prevention efficiency interact with the agent’s risk attitude. We derive comparative statics with respect to impatience, loss severity, and...

We study financial risk taking via standard and sophisticated financial investments. Using survey data on 2,047 individuals, we find that standard investments are strongly associated with both actual and perceived financial literacy for men, but only with actual literacy for women. Sophisticated...

People have the natural tendency to be optimistic and believe that good outcomes in the future are more likely, but also want to avoid overestimation that could result in bad decision-making. Brunnermeier, Brunnermeier and Parker (2005) and Brunnermeier et al. (2007) established an optimal...

Subjects who overestimate their performance in experimental tasks unrelated to travel are less willing to insure against failing in the task and also less inclined to buy travel insurance. This suggests intrinsic optimism influences insurance demand and diminishes adverse selection.